Plumbing Traps Quiz

What is the primary purpose of a trap under an appliance?

• To enhance water flow

• To stop noxious smells from entering the property

• To increase water pressure

• To prevent water leakage

What material are the majority of traps made from?

• Steel

• Polypropylene

• Glass

• Wood

Which of the following is a common jointing method for traps?

• Welding

• Soldering

• Push-fit

• Gluing

What is the minimum depth required for a trap seal when the trap diameter is 50mm or above?

• 30mm

• 40mm

• 50mm

• 60mm

Why do larger diameter traps become more difficult to lose the trap seal?

• They contain less water

• They are more prone to evaporation

• They contain more water

• They are easier to clean

What is the purpose of the trap seal depth in plumbing?

• To increase water pressure

• To stop noxious smells from entering the property

• To improve water flow speed

• To reduce water temperature

What is the waste fitting size for a washbasin?

• 1¼”

• 1½”

• 40mm

• 100mm

What is the trap diameter for a bidet?

• 32mm

• 40mm

• 75mm

• 100mm

What is the seal depth for soil stack for a shower?

• 50mm

• 75mm

• 40mm

• 100mm

Which appliance has a trap diameter of 100mm?

• Washing machine

• Dishwasher

• WC pan

• Bowl urinal